Abstract
We present the first diode-pumped modelocked thulium (Tm3+) laser based on a double-tungstate crystalline gain material. The solid-state laser consists of a Tm:KY(WO4)2 crystal as gain medium and a GaInSb/GaSb quantum well saturable absorber for self-starting passive mode locking. The laser is pumped by a multi-mode fiber-coupled laser diode at a wavelength of 793 nm. An average output power of 202 mW is achieved at a center wavelength of 2032 nm. Pulses with duration of 3 ps are generated at a repetition rate of 139.6 MHz. We also report on the first noise evaluation of a modelocked solid-state laser operating in the 2-µm wavelength range. We measured a timing jitter of sub-100 fs and a relative intensity noise of only 0.04% (frequency range from 500 Hz to 1 MHz).
Original language | English |
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Pages (from-to) | 25760-25766 |
Number of pages | 7 |
Journal | Optics Express |
Volume | 25 |
Issue number | 21 |
DOIs | |
Publication status | Published - 16 Oct 2017 |
Publication type | A1 Journal article-refereed |
Publication forum classification
- Publication forum level 2
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics